GEOPOLYMER-BINDER SYSTEM FOR FIRE CONCRETES, DRY FIRE CONCRETE MIX CONTAINING THE BINDER SYSTEM AND ALSO THE USE OF THE MIX

摘要

The invention relates to an alkaline-activated binder system for fire concretes, which comprises at least one mineral binder and a mineral activator which, in a mixture with water, form a curing geopolymer, where a combination of at least two magnesium components (Mg components) which give an alkaline reaction with water and react with the binder at different times to form a geopolymer is present as activator, where the magnesium components have a different reactivity in respect of atmospheric moisture and/or in respect of the binder. The invention additionally relates to a dry fire concrete mix containing the binder system and also the use of the mix.